As we can see on the image above, the software was trying to find something valid through all those characters contained on the two addresses together, and to get the correct domain from them, in this case the networkpinger.com. Of course that, if two different domain names exist, the software will have to choose one which could be other than the one the user wanted, and it could even be unable to detect the correct address, but this functionality is very useful for those who may wish to simply copy an entire address from a website and put it on the software and let the software filter the domain or IP address inside of it. By filtering the IP address or domain name, the filtered address or domain would be written on the right top corner of the text box below the input field, and this way the user would always know what has been filtered by the software from the user inserted text, and in the case that nothing appears there on the corner, it would mean that no domain name or IP address was detected from what the user has inserted on the input field, and the Resolve button would become unavailable, and if something valid is detected, that button would be available to be clicked upon.

Resolve -
This is the button that executes the Name Resolution command over what has been written on the input box whether it is a domain name or an IP address. After filtering, as it was described above, if the software is able to detect some domain name or IP address inside the text that the user has inserted, then as it was written above this button would become available to be clicked upon, and if not, it would become unavailable. The same way, the user could click on the Enter key when inside the "Domain Name or IP Address" box also, but anyway it would only return valid results if it had a valid domain name or IP address detected by the software. This button will be unavailable also when the software is executing a name resolution request, to avoid that the user clicks on it before the former name resolution has ended.

It's important to know that in this text box we can do lots of things with just a simple left click of our mouse over any word. If we click on any word with our mouse's left button, the software will select that entire word automatically, and then if we click with the right button over that selection, we we'll get a menu with several options on tools that we can apply to the host that we've just selected, or our own customizable commands that we could apply to any word that we select on certain conditions. If we select a group of words, and then click on that selection with the right mouse button, the software will automatically search for the first host inside that selected text, or the first word in it, and it will be that the one to be used on the menu commands and options when we click with our mouse's right button on the selection. For more information it will be best to check the help page on Software Buttons and Menus.